Original messages:
Revert "[readobj] Handle ELF files with no section table or with no program headers."
Revert "[readobj] Dump DT_JMPREL relocations when outputting dynamic relocations."
r260489 depends on r260488 and among other issues r260488 deleted error
handling code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260962 91177308-0d34-0410-b5e6-96231b3b80d8
This adds support for finding the dynamic table and dynamic symbol table via
the section table or the program header table. If there's no section table an
attempt is made to figure out the length of the dynamic symbol table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260488 91177308-0d34-0410-b5e6-96231b3b80d8
It is possible to have .got section and one or more zero-sized section
at the same address. This patch first checks that GOT (or GOT PLT)
section should have non-zero size using corresponding dynamic tags. Then
it looks up not empty section at the specified address.
Differential Revision: http://reviews.llvm.org/D16968
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260245 91177308-0d34-0410-b5e6-96231b3b80d8
This patch was originally committed as r257885, but was reverted due to windows
failures. The cause of these failures has been fixed under r258677, hence
re-committing the original patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258683 91177308-0d34-0410-b5e6-96231b3b80d8
Some architecture specific ELF section flags might have the same value
(for example SHF_X86_64_LARGE and SHF_HEX_GPREL) and we have to check
machine architectures to select an appropriate set of possible flags.
The patch selects architecture specific flags into separate arrays
`ElfxxxSectionFlags` and combines `ElfSectionFlags` and `ElfxxxSectionFlags`
before pass to the `StreamWriter::printFlags()` method.
Differential Revision: http://reviews.llvm.org/D16269
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258334 91177308-0d34-0410-b5e6-96231b3b80d8
# The first commit's message is:
Revert "[ARM] Add DSP build attribute and extension targeting"
This reverts commit b11cc50c0b.
# This is the 2nd commit message:
Revert "[ARM] Add new system registers to ARMv8-M Baseline/Mainline"
This reverts commit 837d08454e.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257916 91177308-0d34-0410-b5e6-96231b3b80d8
Added forgotten ELFDumper.cpp to commit.
Initial commit message:
[llvm-readobj] Add support for TLSDESC_PLT and TLSDESC_GOT dynamic section tags to the llvm-readobj.
If module uses uses lazy TLSDESC relocations it should define DT_TLSDESC_PLT and DT_TLSDESC_GOT entries.
They were unknown for llvm-readobj before this patch.
Differential revision: http://reviews.llvm.org/D16224
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257914 91177308-0d34-0410-b5e6-96231b3b80d8
Initial commit message:
[llvm-readobj] Add support for TLSDESC_PLT and TLSDESC_GOT dynamic section tags to the llvm-readobj.
If module uses uses lazy TLSDESC relocations it should define DT_TLSDESC_PLT and DT_TLSDESC_GOT entries.
They were unknown for llvm-readobj before this patch.
Differential revision: http://reviews.llvm.org/D16224
----
Added : /llvm/trunk/test/tools/llvm-readobj/Inputs/dynamic-table-so.aarch64
Modified : /llvm/trunk/test/tools/llvm-readobj/Inputs/dynamic-table.c
Modified : /llvm/trunk/test/tools/llvm-readobj/dynamic.test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257913 91177308-0d34-0410-b5e6-96231b3b80d8
This rewrites and expands the existing codeview dumping functionality in
llvm-readobj using techniques similar to those in lib/Object. This defines a
number of new records and enums useful for reading memory mapped codeview
sections in COFF objects.
The dumper is intended as a testing tool for LLVM as it grows more codeview
output capabilities.
Reviewers: majnemer
Differential Revision: http://reviews.llvm.org/D16104
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257658 91177308-0d34-0410-b5e6-96231b3b80d8
This change has us print out fields we didn't previously understand. To
improve readability, we now group column information with it's
respective line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257552 91177308-0d34-0410-b5e6-96231b3b80d8
The symbol being printed in this field comes from the main symbol table,
not 0xF1 subsection. Use LinkageName to make that a lot clearer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255596 91177308-0d34-0410-b5e6-96231b3b80d8
If a symbol is marked as "data", the symbol should be exported
with __imp_ prefix. Previously, the symbol was exported as-is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246532 91177308-0d34-0410-b5e6-96231b3b80d8
This patch includes a fix for a llvm-readobj test. With this patch,
the tool does no longer print out COFF headers for the short import
file, but that's probably desirable because the header for the short
import file is dummy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246283 91177308-0d34-0410-b5e6-96231b3b80d8
Column information is present in CodeView when the line table subsection
has bit 0 set to 1 in it's flags field. The column information is
represented as a pair of 16-bit quantities: a starting and ending
column. This information is present at the end of the chunk, after all
the line-PC pairs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241764 91177308-0d34-0410-b5e6-96231b3b80d8
In a relocation target can take 3 basic forms
* A r_value in scattered relocations.
* A symbol in external relocations.
* A section is non-external relocations.
Have the dump reflect that. With this change we go from
CHECK-NEXT: Extern: 0
CHECK-NEXT: Type: X86_64_RELOC_SUBTRACTOR (5)
CHECK-NEXT: Symbol: 0x2
CHECK-NEXT: Scattered: 0
To just
// CHECK-NEXT: Type: X86_64_RELOC_SUBTRACTOR (5)
// CHECK-NEXT: Section: __data (2)
Since the relocation is with a section, we print the seciton name and don't
need to say that it is not scattered or external.
Someone motivated can add further special cases for things like
ARM64_RELOC_ADDEND and ARM_RELOC_PAIR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240073 91177308-0d34-0410-b5e6-96231b3b80d8
The ELF spec is very clear:
-----------------------------------------------------------------------------
If the value is non-zero, it represents a string table index that gives the
symbol name. Otherwise, the symbol table entry has no name.
--------------------------------------------------------------------------
In particular, a st_name of 0 most certainly doesn't mean that the symbol has
the same name as the section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238899 91177308-0d34-0410-b5e6-96231b3b80d8
